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Finding the Fourth Proportional to 83,794.96, 115,647.12 and 47,996.56

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Solution

The fourth proportional to 83,794.96, 115,647.12 and 47,996.56 is: 66,241.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,794.96 : 115,647.12 = 47,996.56 : x
  2. Step 2: Convert to fraction form
    83,794.96/115,647.12 = 47,996.56/x
  3. Step 3: Cross multiply
    83,794.96x = 115,647.12 × 47,996.56
  4. Step 4: Simplify right side
    83,794.96x = 5,550,663,933.91
  5. Step 5: Solve for x
    x = 5,550,663,933.91/83,794.96
  6. Step 6: Final answer
    x = 66,241.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.